Automatic retort-cover.



No. 857,148 PATENTED JUNE'18, 1907.

J. J. BARR.

AUTOMATIC RETORT COVER. APPLICATION FILED JULY 19. 1906.

1 pnrrnn. s'rars JAMES J. BARR, OF SLIDELL, LOUISIANA, ASSIGNOR OF ONE-HA1 S. WALKER, OF SLIDELL, LOUISIANA.

FFICE. I I

AUTOMATlC RETORT-COVE R.

Specification of Letters Patent.

Patented June re, 1907.

.1 Application filed July 19,1906. Serial No. 326.835.

' ing device for hermetically sealing retorts,

cylinders, and for other purposes wherein it is found applicable.

Primarlly the invention is designed for use for closing and hermetically sealing the retorts or c linders used in the preservation of wood an where the material treated, is first subjected to steam pressure and later to heavy pressure under the preservation liquid, the device being so constructed and arranged in such relation with respect to the retort, that the pressure Within the retort or cylinder will automatically operate the device to cause the closing and hermetical sealing of the retort or cylinder.

Although the device isdesignedparticularly for use in connection with Wood preserving plants, yet it'will be stated, that the device is adapted for any usages it may be found applicable.

The invention further aims to provide a closing device which shall be simple in its con struction, automatic in its action, constituting a hermetical seal for the opening with which it is arranged in operative relation, efficient in its use strong, durable, conveniently set up with respect to the opening for which it is adapted to close, and comparatively inexpensive to n anufacture.

With the foregoing and other objects in view the invention consists of the novel con.- struction, combination, and arrangement of parts hereinafter more specificallyreferred to, and illustrated with accompanying drawings, wherein is shown the preferred embodiment of the invention, but, it is to be understood that changes, variations and modification can be resorted to which come Within the scope of the claims hereunto appended.

In describing the invention in detail reference is. had to the accompanying drawings wherein like reference characters denote corresponding parts throughout the several views, and in which Figure 1 is a longitudinal sectional view of a cylinder, the-latter being broken away, shi wing the adaption thereto of an automatic closing device in accordance with this inven t1on.- Fig. 2'is a front elevation of the de- '.F TO CLiFF vice with the shifting links and locking levers removed.

Referring. to the drawings .by reference characters, 3 denotes a receptacle as shown in the-form of a cylinder, to one end of which an automatic closing device, in accordance with this invention, is connected in operative relation so that the closing device forms a continnation of the cylinder 3..

Fixed exteriorly to that end of the cylinder 3 which is to be closed and hermetically sealed by the device is an abutment collar 5- havmg a laterally extending aminlar flange- 4, the forward face of'which is flush with the cylinder edge 6. Adapted to abut against the cylinder edge 6 is the rear edge 7, of a cover having a cylindrical portion of the same diameter as the cylinder. The said cylinder portion of the cover merges into a I cone-shaped or tapering portion 8 terminating in a flange 9. To the inner face of this flange is secured, through the medium of the holdfast devices 10 a cylindrical extension 11, having attached to its forward end by means of the holdfast devices 12, a spider 13.

The latter is provided centrally thereof, with a guide sleeve 14 which extends rearwardly and forwardly of the spider 13. The outer ends ofthe arms of the spider 13 are bent at right angles as at 'so as to embrace the forward end of the cylindrical extension 11 and, through the said angular ends 15 extend the holdfast devices 12 for securing 11. Although the co er and cylindrical extension are shown in two separate parts, 'yet the same can be formed of one element, that is to say, the cylindrical extension may be an integral part of the cover.

Fixed to the periphery of the cylindrical portion 7 of the cover at the rear end thereof, is a collar 16, recessed to receive a packing ring 7 which lies against the edge ,of the cylindrical portion and is flush with the rear of the collar. The collar 16 is formed with a radially projecting annular flange 15v which opposes the flange 4. The collar 16 o poses the collar 5 and the said collars and langes are adapted to be held together through the medium of a means hereinafter set forth and, when in'cngagemcnt, to forni a hermetical closure or seal.

across inward movement of the rod 18 in case a vacuum is ii'crmed ih the cylinder 3. The

I outer, end of the rod 18 has secured thereto an arm 29 which extends from both sides of the rod andhes a ticulated to each end thereof. as at 19* the forward end of a shi ping link which extend at an inclination outwardly with respect 'to the rod 18. To

' rear end of each of the links 20 is ivot;

ally connected as" at 21, the outer on of a combined shifting and locking lever 22, which. has its inner end. formed with a nose 23 adapted to engage thcoutcr edge of the collaw it, so that when the levers 22 are rocked in one direction on their pivots and in a man'- hereinaiter set iorth, the collarlfi cover and cylindrical extension 11 will be moved toward the cylinder 3, causingthe close contact of the flanges); and 15* and the compressing of the peering Z between the collars 5 and 16 thereby forming a hermetical closure.

The ievcrs 22 are arran ed diametrically opposite each other an pivoted intermediate near their nose ends, as at 24 to the forward end-or a pair oi bolts 25'. 'lliese bolts extend throughv slots in flange 4 of the collar. 5 and through slots in fiagge 15 of the collar iii. The bolts 25 not 0 y form fulcrulns for the levers-22, but also act as a means for connecting the collar R5 to the colla 4, Although but two combined shifting and locking leve s are shows, yet this numher and necessary operating means therefor can be 1283763586. ii it'be desired.

he manner in which the closing device operates is as iolii-nt'sz ihe device being set up in the manner as shown, the pressure within the cylinder 3 causes the piston 17to move forwardly carrying the piston rod therewith. As the piston rod 18 moves forwardly it will carry the shifting links 20 and cause tlifiifi to swing inwardly on their .pivot 19, and-the said linksZ-O will rock the levers 22 on their pivots 24, bringing theinose ends 23. of the leversfZZ against the outer edge of" the collar 16. A conformation of the ap li cation of pressure against the piston lawn! cause the nose ends 23 of the levers 22 to sbift't-be flange 15 and cover against the flange a and owing to the interposition of the packing 7 between itscollars 5 and 16 it will form a ht'lliltblfiitl seal-and said seal will be maintained as long as the pressure is exerted against the piston 17. The latter not only constitutes a means for operating the links 20, but also acts as a closure for the open end of the cylinder 3, as the said piston 17 snugly but movably fits the inner lace of the extension 1L, In case the piston is drawn inwardly, .the inward movement thereofis'arrested by the stop 14 engaging the guide sleeve 14.

From the foregoing description taken in connection with the accompanying drawing it will be evident that a closing device is set up, which is unusually strong and automatic,

in its action and furthermore forms what may bc termed a hermetical seal for the open end of a retort or c linder.

Ha thus ful y described the invention, what i diaim as new and desire to secure by Letters Patent is':-

1, A receptacle, and means for closingth'e same, said means comprising a cover, and means carried thereby movable independ entl thereof and actuated by pressure vnltla .in t e receptacle, for securing said cover in position.

2. A receptacle, a cover therefor, and

means responsive to pressure within the re ceptacle and movable independently of the.

gagement with t e receptacle. 3. A receptacle, a cover therefor, asealinjg ring between the'cover and receptacle, an

cover for forcin said cover into sealing enmovable means whercbysaid coverwill be urged against-said ring with a force proportional to the pressure within the race tacle.

4. A receptacle, a cover therefor, apted to abutagalnst the edge thereof and lie partially in the same plane, and fluid'pressure operated means for holding said parts to gather.

5. A receptacle, a cover therefor, sealing meansbetween said cover and said receptacle, reciprocating means carried by said cover responsive to fluid pressure, and means connected to said means for forcing said cover 'into engagement with said sealing means. I r

6. A receptacle, a cover therefor, sealing means between said receptacleand cover, and automatic means, controlled by fluid ressure within said receptacle and movable independently of said cover, for forcing said with a pressure proportional to the fluid pressure existing Within said rece tacle.

.8. A receptacle, a cover t. erefor, locking levers ad'aptedto engage said cover for-shifting it against the receptacle thereby forming an air tight closure, :1 air of links adapted hen operated in one 'rection to move and old said leversin locking position, and link cperating means arranged within said cover and connected with the links.

sure-operated link-operating means arranged within said cover and links.

10. A receptacle, a cover, bolts extending through said receptacle and cover, locking connected with the levers pivotally connected to the bolts and;-

adapted to engage the cover for shifting it against the receptacle thereby forming a tight closure, a air of links for operating the levers, and lin operating means arranged within said cover and connected to the links.

' 11. A receptacle, a cover, bolts extending through said receptacle and cover, locking levers pivotally connected to the bolts and adapted to elagagegt'he cover for shifting it against the receptacle thereby forming a tight closure, a pair of linksfor operating the levers, and pressure operated, link-operating means arranged within said cover and connected to the links. a

In testimony whereof I have hereunto set my hand in presenceof two subscribihg Wit-,

ncsses.

' JAMES J: BARR.

Witnesses H. W. W ODRUFF, Jr.

C. A. DELERT. 

